NO169824B - PROCEDURE FOR MANUFACTURING A CORE WIRE FILL METAL - Google Patents

PROCEDURE FOR MANUFACTURING A CORE WIRE FILL METAL Download PDF

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Publication number
NO169824B
NO169824B NO863339A NO863339A NO169824B NO 169824 B NO169824 B NO 169824B NO 863339 A NO863339 A NO 863339A NO 863339 A NO863339 A NO 863339A NO 169824 B NO169824 B NO 169824B
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Norway
Prior art keywords
wire
filler
core
powder
diameter
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NO863339A
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Norwegian (no)
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NO169824C (en
NO863339L (en
NO863339D0 (en
Inventor
Claire Bond Marshall
Frank Birdsall Lake
Roger Alan Bushey
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Alloy Rods Corp
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Publication of NO863339L publication Critical patent/NO863339L/en
Publication of NO863339D0 publication Critical patent/NO863339D0/en
Publication of NO169824B publication Critical patent/NO169824B/en
Publication of NO169824C publication Critical patent/NO169824C/en

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    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
    • B23K—SOLDERING OR UNSOLDERING; WELDING; CLADDING OR PLATING BY SOLDERING OR WELDING; CUTTING BY APPLYING HEAT LOCALLY, e.g. FLAME CUTTING; WORKING BY LASER BEAM
    • B23K35/00—Rods, electrodes, materials, or media, for use in soldering, welding, or cutting
    • B23K35/02—Rods, electrodes, materials, or media, for use in soldering, welding, or cutting characterised by mechanical features, e.g. shape
    • B23K35/0255—Rods, electrodes, materials, or media, for use in soldering, welding, or cutting characterised by mechanical features, e.g. shape for use in welding
    • B23K35/0261—Rods, electrodes, wires
    • B23K35/0272—Rods, electrodes, wires with more than one layer of coating or sheathing material
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
    • B23K—SOLDERING OR UNSOLDERING; WELDING; CLADDING OR PLATING BY SOLDERING OR WELDING; CUTTING BY APPLYING HEAT LOCALLY, e.g. FLAME CUTTING; WORKING BY LASER BEAM
    • B23K35/00—Rods, electrodes, materials, or media, for use in soldering, welding, or cutting
    • B23K35/22—Rods, electrodes, materials, or media, for use in soldering, welding, or cutting characterised by the composition or nature of the material
    • B23K35/24—Selection of soldering or welding materials proper
    • B23K35/30—Selection of soldering or welding materials proper with the principal constituent melting at less than 1550 degrees C
    • B23K35/3033—Ni as the principal constituent
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
    • B23K—SOLDERING OR UNSOLDERING; WELDING; CLADDING OR PLATING BY SOLDERING OR WELDING; CUTTING BY APPLYING HEAT LOCALLY, e.g. FLAME CUTTING; WORKING BY LASER BEAM
    • B23K35/00—Rods, electrodes, materials, or media, for use in soldering, welding, or cutting
    • B23K35/22—Rods, electrodes, materials, or media, for use in soldering, welding, or cutting characterised by the composition or nature of the material
    • B23K35/24—Selection of soldering or welding materials proper
    • B23K35/30—Selection of soldering or welding materials proper with the principal constituent melting at less than 1550 degrees C
    • B23K35/3053—Fe as the principal constituent
    • B23K35/3066—Fe as the principal constituent with Ni as next major constituent
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
    • Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
    • Y10T428/00—Stock material or miscellaneous articles
    • Y10T428/12—All metal or with adjacent metals
    • Y10T428/12014—All metal or with adjacent metals having metal particles
    • Y10T428/12028—Composite; i.e., plural, adjacent, spatially distinct metal components [e.g., layers, etc.]
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
    • Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
    • Y10T428/00—Stock material or miscellaneous articles
    • Y10T428/12—All metal or with adjacent metals
    • Y10T428/12014—All metal or with adjacent metals having metal particles
    • Y10T428/12028—Composite; i.e., plural, adjacent, spatially distinct metal components [e.g., layers, etc.]
    • Y10T428/12063—Nonparticulate metal component
    • Y10T428/12097—Nonparticulate component encloses particles
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
    • Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
    • Y10T428/00—Stock material or miscellaneous articles
    • Y10T428/12—All metal or with adjacent metals
    • Y10T428/12014—All metal or with adjacent metals having metal particles
    • Y10T428/12028—Composite; i.e., plural, adjacent, spatially distinct metal components [e.g., layers, etc.]
    • Y10T428/12063—Nonparticulate metal component
    • Y10T428/12104—Particles discontinuous
    • Y10T428/12111—Separated by nonmetal matrix or binder [e.g., welding electrode, etc.]
    • Y10T428/12118—Nonparticulate component has Ni-, Cu-, or Zn-base

Description

Foreliggende oppfinnelse vedrører en fremgangsmåte ved fremstilling av et kjernetrådfyllmetall, slik som angitt i krav l's ingress. The present invention relates to a method for producing a core wire filler metal, as stated in claim 1's preamble.

Foreliggende oppfinnelse vedrører generelt fremstilling av fyllmetaller som generelt omfatter et ytre metallark som omslutter en tråd inne i sin kjerne, og som er nyttige for forskjellige sveise-, lodde- eller slagloddeanvendelser. The present invention generally relates to the production of filler metals which generally comprise an outer metal sheet which encloses a wire inside its core, and which are useful for various welding, soldering or brazing applications.

Kjerne forsynt med fyllmetaller er utviklet av elektrode-fabrikanter for å tilfredsstille spesielle fremstillings-og/eller anvendelsesproblemer. Eksempelvis er det meget vanskelig å fremstille en koekstrudert legering med en nominell sammensetning av 55% nikkel/45% jern til en tråd, men det nedsetter overoppvarming under sveising sammenlignet med et tilsvarende smidd produkt, kjerne forsynt tråd-fyllmetaller, i det etterfølgende betegnet med fylte tråder, er også nyttige på grunn av at de har en tendens til å nedsette forskjellige produksjonsvankeligheter og om-kostninger, tillate justering av den tilsiktede kjemiske sammensetning og forbedre renhetsnivået. Cores provided with filler metals have been developed by electrode manufacturers to satisfy special manufacturing and/or application problems. For example, it is very difficult to produce a coextruded alloy with a nominal composition of 55% nickel/45% iron for a wire, but it reduces overheating during welding compared to a corresponding forged product, cored wire-filler metals, in the following denoted by filled filaments, are also useful because they tend to reduce various manufacturing difficulties and costs, allow adjustment of the intended chemical composition and improve the level of purity.

Flyktig magnesiumlegeringtråd omhyllet eksempelvis i stål er fremstilt for å forbedre gjenvinning av magnesium i en smeltet metallinokuleringstekninkk. Se eksempelvis US-patent nr. - 4.205.981. Volatile magnesium alloy wire sheathed in, for example, steel has been produced to improve the recovery of magnesium in a molten metal inoculation technique. See, for example, US patent no. - 4,205,981.

De kjente fremgangsmåter ved fremstilling av fylte tråder er generelt kostbare, upraktiske eller gir ikke tilfredsstillende produkter. En slik fremgangsmåte er særpreget ved trinnene å innføre en metallbarre eller -emne (slik som nikkel med et smeltepunkt på 1455°C) i en hul kjerne i et annet emne (eksempelvis stål; jern har et smeltepunkt på 1530°C) og deretter koekstrudere kompositten. Disse fylte tråder er meget kostbare da de krever spesialisert utstyr som normalt ikke utgjør en del av fyllmetall-fabrikantenes operasjoner. En annen fremgangsmåte er særpreget ved trinnene kun å innføre en belagt kjernetråd i et rør uten ytterligere reduksjon i diameteren. En tredje fremgangsmåte er særpreget ved trinnene å lukke et metallbånd rundt et pulverformig fyllmateriale. De to siste fremgangsmåter er mere praktiske enn den første fremgangsmåte, sett fra et omkostningssynspunkt, men de fylte tråder er ofte ikke tilfredstillende. God elektrisk kontakt mellom den dekkete kjernetråd og det ytre før går ikke sjeldent tapt. Pulverformig fyllmateriale i kjernen, hvis slikt er tilstede, kan segregere eller strømme, hvilket krever anvendelse av bindemidler. Også endene av avkuttede lengder må muligens sammenklemmes og overflaten av kontinuerlige lengder må intermittent sammenklemmes for mekanisk å holde materialet på plass. Disse og andre problemer fører til vanskeligheter, enten som kjernetråd for dekkete elektroder (dekket buesveiseelektroder) eller som fyllmetall ved sveising, lodding eller slaglodding. The known methods for producing filled threads are generally expensive, impractical or do not give satisfactory products. Such a method is characterized by the steps of introducing a metal ingot or billet (such as nickel with a melting point of 1455°C) into a hollow core of another billet (for example steel; iron has a melting point of 1530°C) and then coextruding the composite. These filled wires are very expensive as they require specialized equipment which normally does not form part of the filler metal manufacturers' operations. Another method is characterized by the steps of only introducing a coated core wire into a pipe without further reduction in diameter. A third method is characterized by the steps of closing a metal band around a powdery filling material. The last two methods are more practical than the first method, seen from a cost point of view, but the filled threads are often not satisfactory. Good electrical contact between the covered core wire and the outer one is not rarely lost. Powdery filler material in the core, if present, may segregate or flow, requiring the use of binders. Also, the ends of cut lengths may need to be clamped and the surface of continuous lengths may need to be intermittently clamped to mechanically hold the material in place. These and other problems lead to difficulties, either as a core wire for covered electrodes (covered arc welding electrodes) or as a filler metal in welding, brazing or brazing.

Det er nå funnet en forbedret fremgangsmåte for økonomisk fremstilling av kommersielt akseptable fylte tråder i konvensjonelle produksjonslinjer under anvendelse av ellers kjente teknikker for elektrodefremstilling. Fylte tråder fremstilt i henhold til foreliggende fremgangsmåte kan jevnt over ha bedre driftsegenskaper som fører til bedre dråpeutseende og skjøtkvalitet, og/eller som er billigere og lettere å fremstille. Foreliggende fremgangsmåte omfatter, i tillegg til andre konvensjonelle fremstillingstrinn, trinnene å danne en kompositt-tråd ved å tilveiebringe en kjernetråd og deretter deformere et metallbånd til en omhylning som inneslutter kjernetråden. Deretter å reduseres diameteren for den sammensatte tråd, fortrinnsvis ved å redusere komposittens diameter ved trekking, valsing eller smiing/hamring. Fremgangsmåten er særpreget ved det som er angitt i krav l's karakteristiske del ytterligere trekk fremgår av kravene 2-8. Det er også foretrukket å innelukke pulverfyllmaterialer sammen med tråden i kjernen av omhylningen bl.a for å forbedre formbarheten av kompositt-tråder ved å redusere glipp mellom tråden og omhylningen under diameterreduseringstrinnet. An improved method has now been found for the economic manufacture of commercially acceptable filled wires in conventional production lines using otherwise known techniques for electrode manufacture. Filled threads produced according to the present method may generally have better operating properties leading to better droplet appearance and joint quality, and/or which are cheaper and easier to manufacture. The present method includes, in addition to other conventional manufacturing steps, the steps of forming a composite wire by providing a core wire and then deforming a metal strip into a sheath enclosing the core wire. Then to reduce the diameter of the composite wire, preferably by reducing the diameter of the composite by drawing, rolling or forging/hammering. The method is characterized by what is stated in claim 1's characteristic part, further features appear in claims 2-8. It is also preferred to enclose powder filler materials together with the wire in the core of the sheath, among other things, to improve the formability of composite wires by reducing slippage between the wire and the sheath during the diameter reduction step.

Omhyllingen kan formes fra ethvert egnet jern- eller ikke-jernmetall eller legeringssammensetning, eller det kan ha en bimetallstruktur dannet av forskjellige legeringer. Bløtt stål, som er et konvensjonelt materiale, er ofte egnet. Kjernetråden kan være en fast metalltråd, metallisk pulver og/eller en tråd men en flussmiddelkjerne. Også kjernetråden kan utgjøres av et antall av hver trådtype og/eller en kombinasjon av forskjellige trådtyper. De pulverformige fyllmaterialer er de pulver som normalt tilsettes som legeringsbestanddeler flussmidler og slaggdannere, buestabilisatorer, desoksyasjonmidler, avsvovlingsmidler, desnitrider, avfosforiseingsmidler eller for å oppnå ønskete driftsegenskaper, såsom nedsatt spruting forbedret dåpeutseende og lignende. The sheath may be formed from any suitable ferrous or non-ferrous metal or alloy composition, or it may have a bimetallic structure formed from various alloys. Mild steel, which is a conventional material, is often suitable. The core wire can be a solid metal wire, metallic powder and/or a wire but a flux core. The core thread can also consist of a number of each thread type and/or a combination of different thread types. The powdery filler materials are the powders that are normally added as alloy components, fluxes and slag formers, arc stabilizers, deoxidizers, desulphurizers, desnitrides, dephosphorizers or to achieve the desired operating properties, such as reduced spatter, improved appearance and the like.

Buestabilisatorer som er nyttige i foreliggende tråder innbefatter materialer slik som grafitt, natriumtitanat, kaliumtitanat, feltspater og lignende. Nyttige slaggdannende og gassdannende materialer innbefatter materialer såsom titandioksyd, silisiumdioksyd, magnesiumoksyd, aluminiumok-syder, karbonater, fluorider og lignende. Anvendelige legeringsmaterialer innbefatter krom, aluminium, titan, bor, jern, kobber, kobolt, mangan, vanadium, nikkel, molybden, niob, wolfram og deres legeringer. Nyttige desoksydere, avsvovlingsmidler og/eller desnitridematerialer innbefatter kalsium, titan, barium, magnesium, aluminium, silisium zirkonium, sjeldne jordarter og deres legeringer. Materialer såsom natriumtitanat, silisiumkarbid, de ovenfor nevnte metall-legeringsmaterialer, jernlegeringer og lignende er også egnet for nedsette glipp mellom kjernetråden og omhyllingen under diameterreduseringstrinnet. Arc stabilizers useful in the present wires include materials such as graphite, sodium titanate, potassium titanate, feldspar and the like. Useful slag-forming and gas-forming materials include materials such as titanium dioxide, silicon dioxide, magnesium oxide, aluminum oxides, carbonates, fluorides and the like. Useful alloying materials include chromium, aluminum, titanium, boron, iron, copper, cobalt, manganese, vanadium, nickel, molybdenum, niobium, tungsten and their alloys. Useful deoxidizers, desulfurizers, and/or desnitride materials include calcium, titanium, barium, magnesium, aluminum, silicon zirconium, rare earths and their alloys. Materials such as sodium titanate, silicon carbide, the above-mentioned metal alloy materials, iron alloys and the like are also suitable for reducing slip between the core wire and the sheath during the diameter reduction step.

De fremstilte tråder er nyttige som kontinuerlige fyllmetaller for et bredt antall anvendelser innbefattende gassmetallbue, neddykket bue, gass-wolfram-bue, elektrogass, elektroslagg og gass-sveiseprosesser. De fylte tråder kan rettes ut og kuttes i lengder for anvendelse ved fremstilling av belagte elektroder eller som fyllmateriale ved gass-wolfram-buesveising og gass-sveising, slagglodde- og loddeprosesser. The filaments produced are useful as continuous filler metals for a wide number of applications including gas metal arc, submerged arc, gas tungsten arc, electrogas, electroslag and gas welding processes. The filled wires can be straightened and cut into lengths for use in the manufacture of coated electrodes or as filler material in gas-tungsten arc welding and gas-welding, brazing and soldering processes.

Andre detaljer, hensikter og fordeler ved foreliggende oppfinnelse vil fremgå av de etterfølgende eksempler. Other details, purposes and advantages of the present invention will be apparent from the following examples.

Eksempel 1. Example 1.

Flere sammensatte tråder med en nominell sammensetning på fra 40% til 60% nikkel, resten jern, ble fremstilt i henhold til oppfinnelsen. Omhyllingen ble dannet av et bløtt stål med dimensjonene 0,5 X 12,7 mm og kjernetråden var en fast tråd bestående av 99% nikkel. I tillegg ble grafitt, natriumtitanat og silisiumkarbid hver tilsatt i mengder på ca. 3,5 vekt% regnet på den totale tråd. Silisiumkarbid og natriumtitanat ble tilsatt for å hjelpe til å nedsette glipp mellom den bløte stålomhylling og den rene nikkelkjernetråd. Natriumtitanatet ble også tilsatt sammen med grafitt som en buestabilisator. Several composite wires with a nominal composition of from 40% to 60% nickel, the rest iron, were produced according to the invention. The sheath was formed from a mild steel with dimensions 0.5 X 12.7 mm and the core wire was a solid wire consisting of 99% nickel. In addition, graphite, sodium titanate and silicon carbide were each added in amounts of approx. 3.5% by weight calculated on the total thread. Silicon carbide and sodium titanate were added to help reduce slippage between the mild steel sheath and the pure nickel core wire. The sodium titanate was also added along with graphite as an arc stabilizer.

Deler av den sammensatte tråd ble trukket til en diameter på 2,4 mm (en reduksjon av diameteren på 40%) og 3,2 mm, rettet ut og skåret i lengder på 23 cm, 30 eller 36 cm og ekstru-derbelagt med flussmiddel og legeringsmaterialer. Belegget inneholdt, regnet på den totale vekt av belegget: 20-50 % strontium, kalsium og/eller bariumkarbonater; 12-22 kalsium og/eller strontiumfluorider; 7-15% grafitt; og 15-20% ekstruderingshjelpemidler, aluminium og jernpulvere. Disse belagte elektroder ble undersøkt på 12 mm tykt støpejern under anvendelse av både likestrøm og vekselstrøm, elektrodene med en diameter på 3,2 ga tilfredsstillende sveising under anvendelse av 90-145 amp. og en trefase-konstant-strøm-sveisemaskin. Portions of the composite wire were drawn to a diameter of 2.4 mm (a 40% diameter reduction) and 3.2 mm, straightened and cut into lengths of 23 cm, 30 or 36 cm and extrusion coated with flux and alloy materials. The coating contained, calculated on the total weight of the coating: 20-50% strontium, calcium and/or barium carbonates; 12-22 calcium and/or strontium fluorides; 7-15% graphite; and 15-20% extrusion aids, aluminum and iron powders. These coated electrodes were tested on 12 mm thick cast iron using both direct current and alternating current, the 3.2 diameter electrodes gave satisfactory welding using 90-145 amps. and a three-phase constant-current welding machine.

Andre deler av den sammensatte tråd ble trukket ned til diametere så små 0,6 mm og undersøkt som gassmetall-buesveiseelektroder under anvendelse av beskyttelsesgasser, såsom 98% argon - 2% oksygen og 90% helium - 7% argon - 3% karbondioksyd. Analyse av avsetningen for disse elektroder av 40-60% nikkel, idet resten utgjordes av jern. Elektrodene med en diameter på 1,14 mm ble undersøkt ved 200 amp., 26 V på støpejern under anvendelse av en konstantspenningsstøpe-maskin med noe induktans. Sveiseegenskapene for disse elektroder var tilfredsstillende. Other portions of the composite wire were drawn down to diameters as small as 0.6 mm and tested as gas metal arc welding electrodes using shielding gases such as 98% argon - 2% oxygen and 90% helium - 7% argon - 3% carbon dioxide. Analysis of the deposition for these electrodes of 40-60% nickel, the rest being iron. The 1.14 mm diameter electrodes were tested at 200 amps, 26 V on cast iron using a constant voltage casting machine with some inductance. The welding properties of these electrodes were satisfactory.

Eksempel 2. Example 2.

Kompositter omfattende en omhylling inneholdende pulverformige fyllmaterialer og en tråd i den kjerne og med en nominell sammensetning på 18% krom, 8% nikkel, resten jern, ble fremstilt i henhold til oppfinnelsen. En bløt-stålstrimmel med dimensjoner på ca. 1,0 X 15 mm ble lagt rundt en nikkeltråd med en diameter på 1,5 mm og ca. 17% granulert krompulver, regnet på den totale trådvekt. Composites comprising a sheath containing powdered filler materials and a wire in the core and with a nominal composition of 18% chromium, 8% nickel, the rest iron, were produced according to the invention. A mild steel strip with dimensions of approx. 1.0 X 15 mm was placed around a nickel wire with a diameter of 1.5 mm and approx. 17% granulated chrome powder, calculated on the total wire weight.

Diameteren for den sammensatte tråd ble redusert til 3,2 mm (en reduksjon av diameteren på ca. 45%), rettet og skåret i lengder av ca. 35 cm. Lengdene på 35 cm ble deretter belagt med et ruil/feltspat-belegg sammen med ytterligere leger-ingselementer. Elektrodene ga en bue med gode sprednings-resultater med god slaggkontroll og dråpform. Analyse av avsetningen var et nominelt 29,5 % krom, 9% nikkel rustfritt stål. The diameter of the composite wire was reduced to 3.2 mm (a reduction of the diameter of about 45%), straightened and cut into lengths of about 35 cm. The 35 cm lengths were then coated with a ruil/feldspar coating along with further alloying elements. The electrodes gave an arc with good dispersion results with good slag control and drop shape. Analysis of the deposit was a nominal 29.5% chromium, 9% nickel stainless steel.

Eksempel 3. Example 3.

En kompositt ble fremstilt av en ren nikkelomhylling omsluttende en jerntråd og pulveriserte fyllmaterialer i dens kjerne. Jerntråden var nominelt 98% ren og hadde en diameter på 3,0 mm. Fyllmaterialene omfattet rent nikkelpulver og jernpulver i forholdet 4:1, og pulvermaterialet utgjorde ca. 10% av den totale elektrodevekt. A composite was made of a pure nickel cladding surrounding an iron wire and powdered filler materials in its core. The iron wire was nominally 98% pure and had a diameter of 3.0 mm. The filler materials included pure nickel powder and iron powder in a ratio of 4:1, and the powder material amounted to approx. 10% of the total electrode weight.

Den sammensatte tråd ble trukket til en diameter på 1,6 mm og undersøkt som gassmetall-buesveiseelektrode under anvendelse av 98% argon - 2% oksygenbeskyttelsesgass. Undersøkelsen ble utført på standard støpejern med et typisk karboninnhold på 3,5% og et silisiuminnhold på 2,4 vekt%. The composite wire was drawn to a diameter of 1.6 mm and tested as a gas metal arc welding electrode using 98% argon - 2% oxygen shielding gas. The investigation was carried out on standard cast iron with a typical carbon content of 3.5% and a silicon content of 2.4% by weight.

Sammensetningen av avsetningen av 45-60% nikkel, resten jern. The composition of the deposit of 45-60% nickel, the rest iron.

Eksempel 4. Example 4.

En kompositt omfattende en nikkelomhylling rundt en fast kobbertråd med en nominell sammensetning på 70% nikkel - 30% kobbertråd med en nominell sammensetning på 70% nikkel - 30% kobber ble fremstilt i henhold til oppfinnelsen. Omhyllingen ble dannet av en 0,25 X 10 mm 99% nikkelbånd og wiren ble dannet fra et 99&'ig kobberemne. Ytterligere fyllstoff-materialer ble tilsatt for legering og desoksydering under sveiseoperasj onen. A composite comprising a nickel sheath around a solid copper wire with a nominal composition of 70% nickel - 30% copper wire with a nominal composition of 70% nickel - 30% copper was produced according to the invention. The sheath was formed from a 0.25 x 10 mm 99% nickel strip and the wire was formed from a 99% copper blank. Additional filler materials were added for alloying and deoxidation during the welding operation.

Deler av kompositten ble trukket til en diameter på 2,4 mm (en reduksjon av diameteren på ca. 32%), rettet, skåret i 23 cm. lengder og belagt med flussmaterialer som utgjordes av kryolitt, kasiumkarbonat, rutil og manganpulver. De ferdige elektroder ble deretter anvendt ved sveiseforsøk og ga en tilfredsstillende sveis. Parts of the composite were drawn to a diameter of 2.4 mm (a reduction of the diameter of about 32%), straightened, cut to 23 cm. lengths and coated with flux materials consisting of cryolite, casium carbonate, rutile and manganese powder. The finished electrodes were then used in welding trials and produced a satisfactory weld.

Deler av tråden med en diameter på 2,4 mm ble trukket til en diameter på 1,6 mm og med hell anvendt som en gassmetallbue-elektrode. Portions of the wire with a diameter of 2.4 mm were drawn to a diameter of 1.6 mm and successfully used as a gas metal arc electrode.

Eksempel 5. Example 5.

En kompositt tråd med en nominell sammensetning på 37% nikkel - 30% krom - 33% jern ble fremstilt i henhold til A composite wire with a nominal composition of 37% nickel - 30% chromium - 33% iron was prepared according to

opptinnelsen fra en omhylling rundt en med metallpulver fylt tråd. Omhyllingen ble fremstilt av en AISI type 404 rustfri stålstrimmel med dimensjonene 0,25 X 10 mm. Kjernetråden var fremstilt av en nikkelstrimmel med dimensjonene 0,25 X 10 mm, fylt med 98% krommetallpulver, og trukket til en diameter på 2,3 mm (en reduksjon av diameteren på ca. 36%). the melting from a sheath around a wire filled with metal powder. The casing was made from an AISI type 404 stainless steel strip with dimensions 0.25 X 10 mm. The core wire was made from a nickel strip with dimensions of 0.25 X 10 mm, filled with 98% chromium metal powder, and drawn to a diameter of 2.3 mm (a reduction of the diameter of about 36%).

Deler av kompositt-tråden ble trukket til henholdsvis 2,0 mm og 1,6 mm og med hell evaluert som gassmetallbueelektroder. Parts of the composite wire were drawn to 2.0 mm and 1.6 mm respectively and successfully evaluated as gas metal arc electrodes.

En annen del av tråden ble trukket til en diameter på 2,4 Another section of wire was drawn to a diameter of 2.4

mm, rettet, skåret til 30 cm lengder og belagt med forskjellige flussmidler og legeringsmaterialer. Elektrodene ble med hell undersøkt og en avsetning bestående av 20-23% krom, 8-10% molybden, 17-20% jern, 0,5-2,5% kobolt og 0,2-1,0% wolfram. mm, straightened, cut to 30 cm lengths and coated with various fluxes and alloying materials. The electrodes were successfully examined and a deposit consisting of 20-23% chromium, 8-10% molybdenum, 17-20% iron, 0.5-2.5% cobalt and 0.2-1.0% tungsten.

Eksempel 6. Example 6.

En sammensatt tråd med en nominell sammensetning på 1% aluminium, 43% nikkel og 56% jern ble fremstilt fra en omhylling innesluttende et antall faste tråder og fyllmaterialer i kjernen. Omhyllingen ble fremstilt fra en 0,5 X 13 mm nikkelstrimmel. Kjernetrådene var aluminium med en diameter på 0,8 mm og nikkeltråd med en diameter på 2,3 mm. Nikkelpulverfyllmaterialet ble tilsatt i en mengde på opp til 12 vekt% av den totale sammensatte tråd. A composite wire with a nominal composition of 1% aluminium, 43% nickel and 56% iron was produced from a sheath containing a number of solid wires and filler materials in the core. The cladding was fabricated from a 0.5 X 13 mm nickel strip. The core wires were aluminum with a diameter of 0.8 mm and nickel wire with a diameter of 2.3 mm. The nickel powder filler material was added in an amount of up to 12% by weight of the total composite wire.

Deler av den sammensatte tråd ble trukket til en diameter på henholdsvis 3,2 mm (en reduksjon i diameteren på ca. 30%) og 2,4 mm, rettet, skåret til lengder på henholdsvis 35 cm og 23 cm og deretter belagt med et flussmiddel omfattende strontiumkarbonat, bariumkarbonat, nikkelpulver og grafitt. Elektrodene ble med hell undersøkt på støpejern og ga avsetninger bestående av 45-60% nikkel, 0,5-2,0% aluminium, 1-3% karbon, resten jern. Portions of the composite wire were drawn to a diameter of 3.2 mm (a reduction in diameter of about 30%) and 2.4 mm, respectively, straightened, cut to lengths of 35 cm and 23 cm, respectively, and then coated with a flux comprising strontium carbonate, barium carbonate, nickel powder and graphite. The electrodes were successfully tested on cast iron and yielded deposits consisting of 45-60% nickel, 0.5-2.0% aluminum, 1-3% carbon, the remainder iron.

Andre deler av den sammensatte tråd ble trukket til en diameter på 1,1 mm og med hell anvendt på grått støpejern som en gassmetallbuesveiseelektrode under anvendelse av beskyttelsesgass bestående av 98% argon - 2% oksygen Other parts of the composite wire were drawn to a diameter of 1.1 mm and successfully applied to gray cast iron as a gas metal arc welding electrode using a shielding gas consisting of 98% argon - 2% oxygen

Claims (8)

1. Fremgangsmåte ved fremstilling av et kjernetrådfyllmetall ved å danne en sammensatt tråd ved å deformere et metallbånd med en sammensetning til en omhylning som innelukker en kjernetråd med én annen sammensetning og hvor kjernetråden kan ha en kjerne av et pulverfyllstoff-materiale og/eller at den sammensatte tråd eventuelt er belagt eksternt med et flussmiddel, karakterisert ved å redusere diameteren for den sammensatte tråd slik at omhylningen har en omkrets som er mindre enn 78% av metallbåndets bredde.1. Process for the production of a core wire filler metal by forming a composite wire by deforming a metal strip with a composition into a sheath that encloses a core wire with a different composition and where the core wire may have a core of a powder filler material and/or that it composite wire is optionally coated externally with a flux, characterized by reducing the diameter of the composite wire so that the sheath has a circumference that is less than 78% of the width of the metal band. 2. Fremgangsmåte ifølge krav 1, karakterisert ved at som kjernetråd anvendes en tråd med en flusskjerne.2. Method according to claim 1, characterized in that a wire with a flux core is used as the core wire. 3. Fremgangsmåte ifølge krav 2, karakterisert ved at det anvendes minst 3,5 vektprosent fyllstoffpulver regnet på totalvekten av den sammensatte tråd.3. Method according to claim 2, characterized in that at least 3.5% by weight of filler powder is used, calculated on the total weight of the composite thread. 4. Fremgangsmåte ifølge krav 2 eller 3, karakterisert ved at som trådfyllstoff anvendes lysbuestabilisator.4. Method according to claim 2 or 3, characterized in that an arc stabilizer is used as wire filler. 5. Fremgangsmåte ifølge krav 2-4 karakterisert ved at som pulverfyllstoff anvendes legeringspulver.5. Method according to claims 2-4, characterized in that alloy powder is used as powder filler. 6. Fremgangsmåte ifølge krav 2-5, karakterisert ved at som pulverfyllstoff anvendes slaggdannende midler.6. Method according to claims 2-5, characterized in that slag-forming agents are used as powder filler. 7. Fremgangsmåte ifølge krav 2-6, karakterisert ved at som pulverfyllstoff anvendes gassdannende midler.7. Method according to claims 2-6, characterized in that gas-forming agents are used as powder filler. 8. Fremgangsmåte ifølge krav 2-7, karakterisert ved at som pulverfyllstoffer anvendes desoksydasjonsmidler, desnitrider, avsvovlings-, avfosforiseingsmidler og blandinger derav.8. Process according to claims 2-7, characterized in that deoxidizers, desnitrides, desulfurizers, dephosphorizers and mixtures thereof are used as powder fillers.
NO863339A 1984-12-20 1986-08-19 PROCEDURE FOR MANUFACTURING A CORE WIRE FILL METAL NO169824C (en)

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US06/683,844 US4800131A (en) 1984-12-20 1984-12-20 Cored wire filler metals and a method for their manufacture
PCT/US1985/002165 WO1986003716A1 (en) 1984-12-20 1985-11-01 Cored wire filler metals and a method for their manufacture

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EP0207952A4 (en) 1989-08-09
NO169824C (en) 1992-08-12
JPS62501200A (en) 1987-05-14
DK165580C (en) 1993-05-03
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NO863339L (en) 1986-08-19
DK395086D0 (en) 1986-08-19
DK165580B (en) 1992-12-21
WO1986003716A1 (en) 1986-07-03
FI91498B (en) 1994-03-31
FI91498C (en) 1994-07-11
CA1277956C (en) 1990-12-18
NO863339D0 (en) 1986-08-19
EP0207952A1 (en) 1987-01-14
US4800131A (en) 1989-01-24
FI863167A (en) 1986-08-04
DK395086A (en) 1986-08-19

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